Version:  2.0.40 2.2.26 2.4.37 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2

Linux/drivers/net/wireless/ath/wcn36xx/main.c

  1 /*
  2  * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
  3  *
  4  * Permission to use, copy, modify, and/or distribute this software for any
  5  * purpose with or without fee is hereby granted, provided that the above
  6  * copyright notice and this permission notice appear in all copies.
  7  *
  8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15  */
 16 
 17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 18 
 19 #include <linux/module.h>
 20 #include <linux/firmware.h>
 21 #include <linux/platform_device.h>
 22 #include "wcn36xx.h"
 23 
 24 unsigned int wcn36xx_dbg_mask;
 25 module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
 26 MODULE_PARM_DESC(debug_mask, "Debugging mask");
 27 
 28 #define CHAN2G(_freq, _idx) { \
 29         .band = IEEE80211_BAND_2GHZ, \
 30         .center_freq = (_freq), \
 31         .hw_value = (_idx), \
 32         .max_power = 25, \
 33 }
 34 
 35 #define CHAN5G(_freq, _idx) { \
 36         .band = IEEE80211_BAND_5GHZ, \
 37         .center_freq = (_freq), \
 38         .hw_value = (_idx), \
 39         .max_power = 25, \
 40 }
 41 
 42 /* The wcn firmware expects channel values to matching
 43  * their mnemonic values. So use these for .hw_value. */
 44 static struct ieee80211_channel wcn_2ghz_channels[] = {
 45         CHAN2G(2412, 1), /* Channel 1 */
 46         CHAN2G(2417, 2), /* Channel 2 */
 47         CHAN2G(2422, 3), /* Channel 3 */
 48         CHAN2G(2427, 4), /* Channel 4 */
 49         CHAN2G(2432, 5), /* Channel 5 */
 50         CHAN2G(2437, 6), /* Channel 6 */
 51         CHAN2G(2442, 7), /* Channel 7 */
 52         CHAN2G(2447, 8), /* Channel 8 */
 53         CHAN2G(2452, 9), /* Channel 9 */
 54         CHAN2G(2457, 10), /* Channel 10 */
 55         CHAN2G(2462, 11), /* Channel 11 */
 56         CHAN2G(2467, 12), /* Channel 12 */
 57         CHAN2G(2472, 13), /* Channel 13 */
 58         CHAN2G(2484, 14)  /* Channel 14 */
 59 
 60 };
 61 
 62 static struct ieee80211_channel wcn_5ghz_channels[] = {
 63         CHAN5G(5180, 36),
 64         CHAN5G(5200, 40),
 65         CHAN5G(5220, 44),
 66         CHAN5G(5240, 48),
 67         CHAN5G(5260, 52),
 68         CHAN5G(5280, 56),
 69         CHAN5G(5300, 60),
 70         CHAN5G(5320, 64),
 71         CHAN5G(5500, 100),
 72         CHAN5G(5520, 104),
 73         CHAN5G(5540, 108),
 74         CHAN5G(5560, 112),
 75         CHAN5G(5580, 116),
 76         CHAN5G(5600, 120),
 77         CHAN5G(5620, 124),
 78         CHAN5G(5640, 128),
 79         CHAN5G(5660, 132),
 80         CHAN5G(5700, 140),
 81         CHAN5G(5745, 149),
 82         CHAN5G(5765, 153),
 83         CHAN5G(5785, 157),
 84         CHAN5G(5805, 161),
 85         CHAN5G(5825, 165)
 86 };
 87 
 88 #define RATE(_bitrate, _hw_rate, _flags) { \
 89         .bitrate        = (_bitrate),                   \
 90         .flags          = (_flags),                     \
 91         .hw_value       = (_hw_rate),                   \
 92         .hw_value_short = (_hw_rate)  \
 93 }
 94 
 95 static struct ieee80211_rate wcn_2ghz_rates[] = {
 96         RATE(10, HW_RATE_INDEX_1MBPS, 0),
 97         RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
 98         RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
 99         RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
100         RATE(60, HW_RATE_INDEX_6MBPS, 0),
101         RATE(90, HW_RATE_INDEX_9MBPS, 0),
102         RATE(120, HW_RATE_INDEX_12MBPS, 0),
103         RATE(180, HW_RATE_INDEX_18MBPS, 0),
104         RATE(240, HW_RATE_INDEX_24MBPS, 0),
105         RATE(360, HW_RATE_INDEX_36MBPS, 0),
106         RATE(480, HW_RATE_INDEX_48MBPS, 0),
107         RATE(540, HW_RATE_INDEX_54MBPS, 0)
108 };
109 
110 static struct ieee80211_rate wcn_5ghz_rates[] = {
111         RATE(60, HW_RATE_INDEX_6MBPS, 0),
112         RATE(90, HW_RATE_INDEX_9MBPS, 0),
113         RATE(120, HW_RATE_INDEX_12MBPS, 0),
114         RATE(180, HW_RATE_INDEX_18MBPS, 0),
115         RATE(240, HW_RATE_INDEX_24MBPS, 0),
116         RATE(360, HW_RATE_INDEX_36MBPS, 0),
117         RATE(480, HW_RATE_INDEX_48MBPS, 0),
118         RATE(540, HW_RATE_INDEX_54MBPS, 0)
119 };
120 
121 static struct ieee80211_supported_band wcn_band_2ghz = {
122         .channels       = wcn_2ghz_channels,
123         .n_channels     = ARRAY_SIZE(wcn_2ghz_channels),
124         .bitrates       = wcn_2ghz_rates,
125         .n_bitrates     = ARRAY_SIZE(wcn_2ghz_rates),
126         .ht_cap         = {
127                 .cap =  IEEE80211_HT_CAP_GRN_FLD |
128                         IEEE80211_HT_CAP_SGI_20 |
129                         IEEE80211_HT_CAP_DSSSCCK40 |
130                         IEEE80211_HT_CAP_LSIG_TXOP_PROT,
131                 .ht_supported = true,
132                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
133                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
134                 .mcs = {
135                         .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
136                         .rx_highest = cpu_to_le16(72),
137                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
138                 }
139         }
140 };
141 
142 static struct ieee80211_supported_band wcn_band_5ghz = {
143         .channels       = wcn_5ghz_channels,
144         .n_channels     = ARRAY_SIZE(wcn_5ghz_channels),
145         .bitrates       = wcn_5ghz_rates,
146         .n_bitrates     = ARRAY_SIZE(wcn_5ghz_rates),
147         .ht_cap         = {
148                 .cap =  IEEE80211_HT_CAP_GRN_FLD |
149                         IEEE80211_HT_CAP_SGI_20 |
150                         IEEE80211_HT_CAP_DSSSCCK40 |
151                         IEEE80211_HT_CAP_LSIG_TXOP_PROT |
152                         IEEE80211_HT_CAP_SGI_40 |
153                         IEEE80211_HT_CAP_SUP_WIDTH_20_40,
154                 .ht_supported = true,
155                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
156                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
157                 .mcs = {
158                         .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
159                         .rx_highest = cpu_to_le16(72),
160                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
161                 }
162         }
163 };
164 
165 #ifdef CONFIG_PM
166 
167 static const struct wiphy_wowlan_support wowlan_support = {
168         .flags = WIPHY_WOWLAN_ANY
169 };
170 
171 #endif
172 
173 static inline u8 get_sta_index(struct ieee80211_vif *vif,
174                                struct wcn36xx_sta *sta_priv)
175 {
176         return NL80211_IFTYPE_STATION == vif->type ?
177                sta_priv->bss_sta_index :
178                sta_priv->sta_index;
179 }
180 
181 static const char * const wcn36xx_caps_names[] = {
182         "MCC",                          /* 0 */
183         "P2P",                          /* 1 */
184         "DOT11AC",                      /* 2 */
185         "SLM_SESSIONIZATION",           /* 3 */
186         "DOT11AC_OPMODE",               /* 4 */
187         "SAP32STA",                     /* 5 */
188         "TDLS",                         /* 6 */
189         "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */
190         "WLANACTIVE_OFFLOAD",           /* 8 */
191         "BEACON_OFFLOAD",               /* 9 */
192         "SCAN_OFFLOAD",                 /* 10 */
193         "ROAM_OFFLOAD",                 /* 11 */
194         "BCN_MISS_OFFLOAD",             /* 12 */
195         "STA_POWERSAVE",                /* 13 */
196         "STA_ADVANCED_PWRSAVE",         /* 14 */
197         "AP_UAPSD",                     /* 15 */
198         "AP_DFS",                       /* 16 */
199         "BLOCKACK",                     /* 17 */
200         "PHY_ERR",                      /* 18 */
201         "BCN_FILTER",                   /* 19 */
202         "RTT",                          /* 20 */
203         "RATECTRL",                     /* 21 */
204         "WOW"                           /* 22 */
205 };
206 
207 static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
208 {
209         if (x >= ARRAY_SIZE(wcn36xx_caps_names))
210                 return "UNKNOWN";
211         return wcn36xx_caps_names[x];
212 }
213 
214 static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
215 {
216         int i;
217 
218         for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
219                 if (get_feat_caps(wcn->fw_feat_caps, i))
220                         wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i));
221         }
222 }
223 
224 static void wcn36xx_detect_chip_version(struct wcn36xx *wcn)
225 {
226         if (get_feat_caps(wcn->fw_feat_caps, DOT11AC)) {
227                 wcn36xx_info("Chip is 3680\n");
228                 wcn->chip_version = WCN36XX_CHIP_3680;
229         } else {
230                 wcn36xx_info("Chip is 3660\n");
231                 wcn->chip_version = WCN36XX_CHIP_3660;
232         }
233 }
234 
235 static int wcn36xx_start(struct ieee80211_hw *hw)
236 {
237         struct wcn36xx *wcn = hw->priv;
238         int ret;
239 
240         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
241 
242         /* SMD initialization */
243         ret = wcn36xx_smd_open(wcn);
244         if (ret) {
245                 wcn36xx_err("Failed to open smd channel: %d\n", ret);
246                 goto out_err;
247         }
248 
249         /* Allocate memory pools for Mgmt BD headers and Data BD headers */
250         ret = wcn36xx_dxe_allocate_mem_pools(wcn);
251         if (ret) {
252                 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
253                 goto out_smd_close;
254         }
255 
256         ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
257         if (ret) {
258                 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
259                 goto out_free_dxe_pool;
260         }
261 
262         wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
263         if (!wcn->hal_buf) {
264                 wcn36xx_err("Failed to allocate smd buf\n");
265                 ret = -ENOMEM;
266                 goto out_free_dxe_ctl;
267         }
268 
269         ret = wcn36xx_smd_load_nv(wcn);
270         if (ret) {
271                 wcn36xx_err("Failed to push NV to chip\n");
272                 goto out_free_smd_buf;
273         }
274 
275         ret = wcn36xx_smd_start(wcn);
276         if (ret) {
277                 wcn36xx_err("Failed to start chip\n");
278                 goto out_free_smd_buf;
279         }
280 
281         if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
282                 ret = wcn36xx_smd_feature_caps_exchange(wcn);
283                 if (ret)
284                         wcn36xx_warn("Exchange feature caps failed\n");
285                 else
286                         wcn36xx_feat_caps_info(wcn);
287         }
288 
289         wcn36xx_detect_chip_version(wcn);
290 
291         /* DMA channel initialization */
292         ret = wcn36xx_dxe_init(wcn);
293         if (ret) {
294                 wcn36xx_err("DXE init failed\n");
295                 goto out_smd_stop;
296         }
297 
298         wcn36xx_debugfs_init(wcn);
299 
300         INIT_LIST_HEAD(&wcn->vif_list);
301         spin_lock_init(&wcn->dxe_lock);
302 
303         return 0;
304 
305 out_smd_stop:
306         wcn36xx_smd_stop(wcn);
307 out_free_smd_buf:
308         kfree(wcn->hal_buf);
309 out_free_dxe_pool:
310         wcn36xx_dxe_free_mem_pools(wcn);
311 out_free_dxe_ctl:
312         wcn36xx_dxe_free_ctl_blks(wcn);
313 out_smd_close:
314         wcn36xx_smd_close(wcn);
315 out_err:
316         return ret;
317 }
318 
319 static void wcn36xx_stop(struct ieee80211_hw *hw)
320 {
321         struct wcn36xx *wcn = hw->priv;
322 
323         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
324 
325         wcn36xx_debugfs_exit(wcn);
326         wcn36xx_smd_stop(wcn);
327         wcn36xx_dxe_deinit(wcn);
328         wcn36xx_smd_close(wcn);
329 
330         wcn36xx_dxe_free_mem_pools(wcn);
331         wcn36xx_dxe_free_ctl_blks(wcn);
332 
333         kfree(wcn->hal_buf);
334 }
335 
336 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
337 {
338         struct wcn36xx *wcn = hw->priv;
339         struct ieee80211_vif *vif = NULL;
340         struct wcn36xx_vif *tmp;
341 
342         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
343 
344         if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
345                 int ch = WCN36XX_HW_CHANNEL(wcn);
346                 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
347                             ch);
348                 list_for_each_entry(tmp, &wcn->vif_list, list) {
349                         vif = container_of((void *)tmp,
350                                            struct ieee80211_vif,
351                                            drv_priv);
352                         wcn36xx_smd_switch_channel(wcn, vif, ch);
353                 }
354         }
355 
356         return 0;
357 }
358 
359 #define WCN36XX_SUPPORTED_FILTERS (0)
360 
361 static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
362                                      unsigned int changed,
363                                      unsigned int *total, u64 multicast)
364 {
365         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
366 
367         *total &= WCN36XX_SUPPORTED_FILTERS;
368 }
369 
370 static void wcn36xx_tx(struct ieee80211_hw *hw,
371                        struct ieee80211_tx_control *control,
372                        struct sk_buff *skb)
373 {
374         struct wcn36xx *wcn = hw->priv;
375         struct wcn36xx_sta *sta_priv = NULL;
376 
377         if (control->sta)
378                 sta_priv = (struct wcn36xx_sta *)control->sta->drv_priv;
379 
380         if (wcn36xx_start_tx(wcn, sta_priv, skb))
381                 ieee80211_free_txskb(wcn->hw, skb);
382 }
383 
384 static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
385                            struct ieee80211_vif *vif,
386                            struct ieee80211_sta *sta,
387                            struct ieee80211_key_conf *key_conf)
388 {
389         struct wcn36xx *wcn = hw->priv;
390         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
391         struct wcn36xx_sta *sta_priv = vif_priv->sta;
392         int ret = 0;
393         u8 key[WLAN_MAX_KEY_LEN];
394 
395         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
396         wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
397                     cmd, key_conf->cipher, key_conf->keyidx,
398                     key_conf->keylen, key_conf->flags);
399         wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
400                          key_conf->key,
401                          key_conf->keylen);
402 
403         switch (key_conf->cipher) {
404         case WLAN_CIPHER_SUITE_WEP40:
405                 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
406                 break;
407         case WLAN_CIPHER_SUITE_WEP104:
408                 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
409                 break;
410         case WLAN_CIPHER_SUITE_CCMP:
411                 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
412                 break;
413         case WLAN_CIPHER_SUITE_TKIP:
414                 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
415                 break;
416         default:
417                 wcn36xx_err("Unsupported key type 0x%x\n",
418                               key_conf->cipher);
419                 ret = -EOPNOTSUPP;
420                 goto out;
421         }
422 
423         switch (cmd) {
424         case SET_KEY:
425                 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
426                         /*
427                          * Supplicant is sending key in the wrong order:
428                          * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
429                          * but HW expects it to be in the order as described in
430                          * IEEE 802.11 spec (see chapter 11.7) like this:
431                          * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
432                          */
433                         memcpy(key, key_conf->key, 16);
434                         memcpy(key + 16, key_conf->key + 24, 8);
435                         memcpy(key + 24, key_conf->key + 16, 8);
436                 } else {
437                         memcpy(key, key_conf->key, key_conf->keylen);
438                 }
439 
440                 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
441                         sta_priv->is_data_encrypted = true;
442                         /* Reconfigure bss with encrypt_type */
443                         if (NL80211_IFTYPE_STATION == vif->type)
444                                 wcn36xx_smd_config_bss(wcn,
445                                                        vif,
446                                                        sta,
447                                                        sta->addr,
448                                                        true);
449 
450                         wcn36xx_smd_set_stakey(wcn,
451                                 vif_priv->encrypt_type,
452                                 key_conf->keyidx,
453                                 key_conf->keylen,
454                                 key,
455                                 get_sta_index(vif, sta_priv));
456                 } else {
457                         wcn36xx_smd_set_bsskey(wcn,
458                                 vif_priv->encrypt_type,
459                                 key_conf->keyidx,
460                                 key_conf->keylen,
461                                 key);
462                         if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
463                             (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
464                                 sta_priv->is_data_encrypted = true;
465                                 wcn36xx_smd_set_stakey(wcn,
466                                         vif_priv->encrypt_type,
467                                         key_conf->keyidx,
468                                         key_conf->keylen,
469                                         key,
470                                         get_sta_index(vif, sta_priv));
471                         }
472                 }
473                 break;
474         case DISABLE_KEY:
475                 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
476                         wcn36xx_smd_remove_bsskey(wcn,
477                                 vif_priv->encrypt_type,
478                                 key_conf->keyidx);
479                 } else {
480                         sta_priv->is_data_encrypted = false;
481                         /* do not remove key if disassociated */
482                         if (sta_priv->aid)
483                                 wcn36xx_smd_remove_stakey(wcn,
484                                         vif_priv->encrypt_type,
485                                         key_conf->keyidx,
486                                         get_sta_index(vif, sta_priv));
487                 }
488                 break;
489         default:
490                 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
491                 ret = -EOPNOTSUPP;
492                 goto out;
493         }
494 
495 out:
496         return ret;
497 }
498 
499 static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw,
500                                   struct ieee80211_vif *vif,
501                                   const u8 *mac_addr)
502 {
503         struct wcn36xx *wcn = hw->priv;
504 
505         wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
506         wcn36xx_smd_start_scan(wcn);
507 }
508 
509 static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw,
510                                      struct ieee80211_vif *vif)
511 {
512         struct wcn36xx *wcn = hw->priv;
513 
514         wcn36xx_smd_end_scan(wcn);
515         wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
516 }
517 
518 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
519                                          enum ieee80211_band band)
520 {
521         int i, size;
522         u16 *rates_table;
523         struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
524         u32 rates = sta->supp_rates[band];
525 
526         memset(&sta_priv->supported_rates, 0,
527                 sizeof(sta_priv->supported_rates));
528         sta_priv->supported_rates.op_rate_mode = STA_11n;
529 
530         size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
531         rates_table = sta_priv->supported_rates.dsss_rates;
532         if (band == IEEE80211_BAND_2GHZ) {
533                 for (i = 0; i < size; i++) {
534                         if (rates & 0x01) {
535                                 rates_table[i] = wcn_2ghz_rates[i].hw_value;
536                                 rates = rates >> 1;
537                         }
538                 }
539         }
540 
541         size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
542         rates_table = sta_priv->supported_rates.ofdm_rates;
543         for (i = 0; i < size; i++) {
544                 if (rates & 0x01) {
545                         rates_table[i] = wcn_5ghz_rates[i].hw_value;
546                         rates = rates >> 1;
547                 }
548         }
549 
550         if (sta->ht_cap.ht_supported) {
551                 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
552                         sizeof(sta_priv->supported_rates.supported_mcs_set));
553                 memcpy(sta_priv->supported_rates.supported_mcs_set,
554                        sta->ht_cap.mcs.rx_mask,
555                        sizeof(sta->ht_cap.mcs.rx_mask));
556         }
557 }
558 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
559 {
560         u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
561                 HW_RATE_INDEX_6MBPS,
562                 HW_RATE_INDEX_9MBPS,
563                 HW_RATE_INDEX_12MBPS,
564                 HW_RATE_INDEX_18MBPS,
565                 HW_RATE_INDEX_24MBPS,
566                 HW_RATE_INDEX_36MBPS,
567                 HW_RATE_INDEX_48MBPS,
568                 HW_RATE_INDEX_54MBPS
569         };
570         u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
571                 HW_RATE_INDEX_1MBPS,
572                 HW_RATE_INDEX_2MBPS,
573                 HW_RATE_INDEX_5_5MBPS,
574                 HW_RATE_INDEX_11MBPS
575         };
576 
577         rates->op_rate_mode = STA_11n;
578         memcpy(rates->dsss_rates, dsss_rates,
579                 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
580         memcpy(rates->ofdm_rates, ofdm_rates,
581                 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
582         rates->supported_mcs_set[0] = 0xFF;
583 }
584 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
585                                      struct ieee80211_vif *vif,
586                                      struct ieee80211_bss_conf *bss_conf,
587                                      u32 changed)
588 {
589         struct wcn36xx *wcn = hw->priv;
590         struct sk_buff *skb = NULL;
591         u16 tim_off, tim_len;
592         enum wcn36xx_hal_link_state link_state;
593         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
594 
595         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
596                     vif, changed);
597 
598         if (changed & BSS_CHANGED_BEACON_INFO) {
599                 wcn36xx_dbg(WCN36XX_DBG_MAC,
600                             "mac bss changed dtim period %d\n",
601                             bss_conf->dtim_period);
602 
603                 vif_priv->dtim_period = bss_conf->dtim_period;
604         }
605 
606         if (changed & BSS_CHANGED_PS) {
607                 wcn36xx_dbg(WCN36XX_DBG_MAC,
608                             "mac bss PS set %d\n",
609                             bss_conf->ps);
610                 if (bss_conf->ps) {
611                         wcn36xx_pmc_enter_bmps_state(wcn, vif);
612                 } else {
613                         wcn36xx_pmc_exit_bmps_state(wcn, vif);
614                 }
615         }
616 
617         if (changed & BSS_CHANGED_BSSID) {
618                 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
619                             bss_conf->bssid);
620 
621                 if (!is_zero_ether_addr(bss_conf->bssid)) {
622                         vif_priv->is_joining = true;
623                         vif_priv->bss_index = 0xff;
624                         wcn36xx_smd_join(wcn, bss_conf->bssid,
625                                          vif->addr, WCN36XX_HW_CHANNEL(wcn));
626                         wcn36xx_smd_config_bss(wcn, vif, NULL,
627                                                bss_conf->bssid, false);
628                 } else {
629                         vif_priv->is_joining = false;
630                         wcn36xx_smd_delete_bss(wcn, vif);
631                 }
632         }
633 
634         if (changed & BSS_CHANGED_SSID) {
635                 wcn36xx_dbg(WCN36XX_DBG_MAC,
636                             "mac bss changed ssid\n");
637                 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
638                                  bss_conf->ssid, bss_conf->ssid_len);
639 
640                 vif_priv->ssid.length = bss_conf->ssid_len;
641                 memcpy(&vif_priv->ssid.ssid,
642                        bss_conf->ssid,
643                        bss_conf->ssid_len);
644         }
645 
646         if (changed & BSS_CHANGED_ASSOC) {
647                 vif_priv->is_joining = false;
648                 if (bss_conf->assoc) {
649                         struct ieee80211_sta *sta;
650                         struct wcn36xx_sta *sta_priv;
651 
652                         wcn36xx_dbg(WCN36XX_DBG_MAC,
653                                     "mac assoc bss %pM vif %pM AID=%d\n",
654                                      bss_conf->bssid,
655                                      vif->addr,
656                                      bss_conf->aid);
657 
658                         rcu_read_lock();
659                         sta = ieee80211_find_sta(vif, bss_conf->bssid);
660                         if (!sta) {
661                                 wcn36xx_err("sta %pM is not found\n",
662                                               bss_conf->bssid);
663                                 rcu_read_unlock();
664                                 goto out;
665                         }
666                         sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
667 
668                         wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
669 
670                         wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
671                                 vif->addr,
672                                 WCN36XX_HAL_LINK_POSTASSOC_STATE);
673                         wcn36xx_smd_config_bss(wcn, vif, sta,
674                                                bss_conf->bssid,
675                                                true);
676                         sta_priv->aid = bss_conf->aid;
677                         /*
678                          * config_sta must be called from  because this is the
679                          * place where AID is available.
680                          */
681                         wcn36xx_smd_config_sta(wcn, vif, sta);
682                         rcu_read_unlock();
683                 } else {
684                         wcn36xx_dbg(WCN36XX_DBG_MAC,
685                                     "disassociated bss %pM vif %pM AID=%d\n",
686                                     bss_conf->bssid,
687                                     vif->addr,
688                                     bss_conf->aid);
689                         wcn36xx_smd_set_link_st(wcn,
690                                                 bss_conf->bssid,
691                                                 vif->addr,
692                                                 WCN36XX_HAL_LINK_IDLE_STATE);
693                 }
694         }
695 
696         if (changed & BSS_CHANGED_AP_PROBE_RESP) {
697                 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
698                 skb = ieee80211_proberesp_get(hw, vif);
699                 if (!skb) {
700                         wcn36xx_err("failed to alloc probereq skb\n");
701                         goto out;
702                 }
703 
704                 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
705                 dev_kfree_skb(skb);
706         }
707 
708         if (changed & BSS_CHANGED_BEACON_ENABLED ||
709             changed & BSS_CHANGED_BEACON) {
710                 wcn36xx_dbg(WCN36XX_DBG_MAC,
711                             "mac bss changed beacon enabled %d\n",
712                             bss_conf->enable_beacon);
713 
714                 if (bss_conf->enable_beacon) {
715                         vif_priv->dtim_period = bss_conf->dtim_period;
716                         vif_priv->bss_index = 0xff;
717                         wcn36xx_smd_config_bss(wcn, vif, NULL,
718                                                vif->addr, false);
719                         skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
720                                                        &tim_len);
721                         if (!skb) {
722                                 wcn36xx_err("failed to alloc beacon skb\n");
723                                 goto out;
724                         }
725                         wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
726                         dev_kfree_skb(skb);
727 
728                         if (vif->type == NL80211_IFTYPE_ADHOC ||
729                             vif->type == NL80211_IFTYPE_MESH_POINT)
730                                 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
731                         else
732                                 link_state = WCN36XX_HAL_LINK_AP_STATE;
733 
734                         wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
735                                                 link_state);
736                 } else {
737                         wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
738                                                 WCN36XX_HAL_LINK_IDLE_STATE);
739                         wcn36xx_smd_delete_bss(wcn, vif);
740                 }
741         }
742 out:
743         return;
744 }
745 
746 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
747 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
748 {
749         struct wcn36xx *wcn = hw->priv;
750         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
751 
752         wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
753         return 0;
754 }
755 
756 static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
757                                      struct ieee80211_vif *vif)
758 {
759         struct wcn36xx *wcn = hw->priv;
760         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
761         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
762 
763         list_del(&vif_priv->list);
764         wcn36xx_smd_delete_sta_self(wcn, vif->addr);
765 }
766 
767 static int wcn36xx_add_interface(struct ieee80211_hw *hw,
768                                  struct ieee80211_vif *vif)
769 {
770         struct wcn36xx *wcn = hw->priv;
771         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
772 
773         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
774                     vif, vif->type);
775 
776         if (!(NL80211_IFTYPE_STATION == vif->type ||
777               NL80211_IFTYPE_AP == vif->type ||
778               NL80211_IFTYPE_ADHOC == vif->type ||
779               NL80211_IFTYPE_MESH_POINT == vif->type)) {
780                 wcn36xx_warn("Unsupported interface type requested: %d\n",
781                              vif->type);
782                 return -EOPNOTSUPP;
783         }
784 
785         list_add(&vif_priv->list, &wcn->vif_list);
786         wcn36xx_smd_add_sta_self(wcn, vif);
787 
788         return 0;
789 }
790 
791 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
792                            struct ieee80211_sta *sta)
793 {
794         struct wcn36xx *wcn = hw->priv;
795         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
796         struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
797         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
798                     vif, sta->addr);
799 
800         spin_lock_init(&sta_priv->ampdu_lock);
801         vif_priv->sta = sta_priv;
802         sta_priv->vif = vif_priv;
803         /*
804          * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
805          * at this stage AID is not available yet.
806          */
807         if (NL80211_IFTYPE_STATION != vif->type) {
808                 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
809                 sta_priv->aid = sta->aid;
810                 wcn36xx_smd_config_sta(wcn, vif, sta);
811         }
812         return 0;
813 }
814 
815 static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
816                               struct ieee80211_vif *vif,
817                               struct ieee80211_sta *sta)
818 {
819         struct wcn36xx *wcn = hw->priv;
820         struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
821         struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
822 
823         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
824                     vif, sta->addr, sta_priv->sta_index);
825 
826         wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
827         vif_priv->sta = NULL;
828         sta_priv->vif = NULL;
829         return 0;
830 }
831 
832 #ifdef CONFIG_PM
833 
834 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
835 {
836         struct wcn36xx *wcn = hw->priv;
837 
838         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
839 
840         flush_workqueue(wcn->hal_ind_wq);
841         wcn36xx_smd_set_power_params(wcn, true);
842         return 0;
843 }
844 
845 static int wcn36xx_resume(struct ieee80211_hw *hw)
846 {
847         struct wcn36xx *wcn = hw->priv;
848 
849         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
850 
851         flush_workqueue(wcn->hal_ind_wq);
852         wcn36xx_smd_set_power_params(wcn, false);
853         return 0;
854 }
855 
856 #endif
857 
858 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
859                     struct ieee80211_vif *vif,
860                     enum ieee80211_ampdu_mlme_action action,
861                     struct ieee80211_sta *sta, u16 tid, u16 *ssn,
862                     u8 buf_size)
863 {
864         struct wcn36xx *wcn = hw->priv;
865         struct wcn36xx_sta *sta_priv = NULL;
866 
867         wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
868                     action, tid);
869 
870         sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
871 
872         switch (action) {
873         case IEEE80211_AMPDU_RX_START:
874                 sta_priv->tid = tid;
875                 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
876                         get_sta_index(vif, sta_priv));
877                 wcn36xx_smd_add_ba(wcn);
878                 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
879                 break;
880         case IEEE80211_AMPDU_RX_STOP:
881                 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
882                 break;
883         case IEEE80211_AMPDU_TX_START:
884                 spin_lock_bh(&sta_priv->ampdu_lock);
885                 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
886                 spin_unlock_bh(&sta_priv->ampdu_lock);
887 
888                 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
889                 break;
890         case IEEE80211_AMPDU_TX_OPERATIONAL:
891                 spin_lock_bh(&sta_priv->ampdu_lock);
892                 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
893                 spin_unlock_bh(&sta_priv->ampdu_lock);
894 
895                 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
896                         get_sta_index(vif, sta_priv));
897                 break;
898         case IEEE80211_AMPDU_TX_STOP_FLUSH:
899         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
900         case IEEE80211_AMPDU_TX_STOP_CONT:
901                 spin_lock_bh(&sta_priv->ampdu_lock);
902                 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
903                 spin_unlock_bh(&sta_priv->ampdu_lock);
904 
905                 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
906                 break;
907         default:
908                 wcn36xx_err("Unknown AMPDU action\n");
909         }
910 
911         return 0;
912 }
913 
914 static const struct ieee80211_ops wcn36xx_ops = {
915         .start                  = wcn36xx_start,
916         .stop                   = wcn36xx_stop,
917         .add_interface          = wcn36xx_add_interface,
918         .remove_interface       = wcn36xx_remove_interface,
919 #ifdef CONFIG_PM
920         .suspend                = wcn36xx_suspend,
921         .resume                 = wcn36xx_resume,
922 #endif
923         .config                 = wcn36xx_config,
924         .configure_filter       = wcn36xx_configure_filter,
925         .tx                     = wcn36xx_tx,
926         .set_key                = wcn36xx_set_key,
927         .sw_scan_start          = wcn36xx_sw_scan_start,
928         .sw_scan_complete       = wcn36xx_sw_scan_complete,
929         .bss_info_changed       = wcn36xx_bss_info_changed,
930         .set_rts_threshold      = wcn36xx_set_rts_threshold,
931         .sta_add                = wcn36xx_sta_add,
932         .sta_remove             = wcn36xx_sta_remove,
933         .ampdu_action           = wcn36xx_ampdu_action,
934 };
935 
936 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
937 {
938         int ret = 0;
939 
940         static const u32 cipher_suites[] = {
941                 WLAN_CIPHER_SUITE_WEP40,
942                 WLAN_CIPHER_SUITE_WEP104,
943                 WLAN_CIPHER_SUITE_TKIP,
944                 WLAN_CIPHER_SUITE_CCMP,
945         };
946 
947         ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
948         ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
949         ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
950         ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
951         ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
952         ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
953 
954         wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
955                 BIT(NL80211_IFTYPE_AP) |
956                 BIT(NL80211_IFTYPE_ADHOC) |
957                 BIT(NL80211_IFTYPE_MESH_POINT);
958 
959         wcn->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wcn_band_2ghz;
960         wcn->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wcn_band_5ghz;
961 
962         wcn->hw->wiphy->cipher_suites = cipher_suites;
963         wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
964 
965         wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
966 
967 #ifdef CONFIG_PM
968         wcn->hw->wiphy->wowlan = &wowlan_support;
969 #endif
970 
971         wcn->hw->max_listen_interval = 200;
972 
973         wcn->hw->queues = 4;
974 
975         SET_IEEE80211_DEV(wcn->hw, wcn->dev);
976 
977         wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
978         wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
979 
980         return ret;
981 }
982 
983 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
984                                           struct platform_device *pdev)
985 {
986         struct resource *res;
987         /* Set TX IRQ */
988         res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
989                                            "wcnss_wlantx_irq");
990         if (!res) {
991                 wcn36xx_err("failed to get tx_irq\n");
992                 return -ENOENT;
993         }
994         wcn->tx_irq = res->start;
995 
996         /* Set RX IRQ */
997         res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
998                                            "wcnss_wlanrx_irq");
999         if (!res) {
1000                 wcn36xx_err("failed to get rx_irq\n");
1001                 return -ENOENT;
1002         }
1003         wcn->rx_irq = res->start;
1004 
1005         /* Map the memory */
1006         res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
1007                                                  "wcnss_mmio");
1008         if (!res) {
1009                 wcn36xx_err("failed to get mmio\n");
1010                 return -ENOENT;
1011         }
1012         wcn->mmio = ioremap(res->start, resource_size(res));
1013         if (!wcn->mmio) {
1014                 wcn36xx_err("failed to map io memory\n");
1015                 return -ENOMEM;
1016         }
1017         return 0;
1018 }
1019 
1020 static int wcn36xx_probe(struct platform_device *pdev)
1021 {
1022         struct ieee80211_hw *hw;
1023         struct wcn36xx *wcn;
1024         int ret;
1025         u8 addr[ETH_ALEN];
1026 
1027         wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1028 
1029         hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1030         if (!hw) {
1031                 wcn36xx_err("failed to alloc hw\n");
1032                 ret = -ENOMEM;
1033                 goto out_err;
1034         }
1035         platform_set_drvdata(pdev, hw);
1036         wcn = hw->priv;
1037         wcn->hw = hw;
1038         wcn->dev = &pdev->dev;
1039         wcn->ctrl_ops = pdev->dev.platform_data;
1040 
1041         mutex_init(&wcn->hal_mutex);
1042 
1043         if (!wcn->ctrl_ops->get_hw_mac(addr)) {
1044                 wcn36xx_info("mac address: %pM\n", addr);
1045                 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1046         }
1047 
1048         ret = wcn36xx_platform_get_resources(wcn, pdev);
1049         if (ret)
1050                 goto out_wq;
1051 
1052         wcn36xx_init_ieee80211(wcn);
1053         ret = ieee80211_register_hw(wcn->hw);
1054         if (ret)
1055                 goto out_unmap;
1056 
1057         return 0;
1058 
1059 out_unmap:
1060         iounmap(wcn->mmio);
1061 out_wq:
1062         ieee80211_free_hw(hw);
1063 out_err:
1064         return ret;
1065 }
1066 static int wcn36xx_remove(struct platform_device *pdev)
1067 {
1068         struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1069         struct wcn36xx *wcn = hw->priv;
1070         wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1071 
1072         release_firmware(wcn->nv);
1073         mutex_destroy(&wcn->hal_mutex);
1074 
1075         ieee80211_unregister_hw(hw);
1076         iounmap(wcn->mmio);
1077         ieee80211_free_hw(hw);
1078 
1079         return 0;
1080 }
1081 static const struct platform_device_id wcn36xx_platform_id_table[] = {
1082         {
1083                 .name = "wcn36xx",
1084                 .driver_data = 0
1085         },
1086         {}
1087 };
1088 MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table);
1089 
1090 static struct platform_driver wcn36xx_driver = {
1091         .probe      = wcn36xx_probe,
1092         .remove     = wcn36xx_remove,
1093         .driver         = {
1094                 .name   = "wcn36xx",
1095         },
1096         .id_table    = wcn36xx_platform_id_table,
1097 };
1098 
1099 static int __init wcn36xx_init(void)
1100 {
1101         platform_driver_register(&wcn36xx_driver);
1102         return 0;
1103 }
1104 module_init(wcn36xx_init);
1105 
1106 static void __exit wcn36xx_exit(void)
1107 {
1108         platform_driver_unregister(&wcn36xx_driver);
1109 }
1110 module_exit(wcn36xx_exit);
1111 
1112 MODULE_LICENSE("Dual BSD/GPL");
1113 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1114 MODULE_FIRMWARE(WLAN_NV_FILE);
1115 

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